mm/hugetlb: convert hugetlb fault paths to use alloc_hugetlb_folio()
authorSidhartha Kumar <sidhartha.kumar@oracle.com>
Wed, 25 Jan 2023 17:05:33 +0000 (09:05 -0800)
committerAndrew Morton <akpm@linux-foundation.org>
Mon, 13 Feb 2023 23:54:29 +0000 (15:54 -0800)
commitd0ce0e47b323a8d7fb5dc3314ce56afa650ade2d
treec9908f5393ea65eafbcf8ac63d1cf9aa8600b57f
parentea8e72f4116a995c2aba3fb738ac372c4115375a
mm/hugetlb: convert hugetlb fault paths to use alloc_hugetlb_folio()

Change alloc_huge_page() to alloc_hugetlb_folio() by changing all callers
to handle the now folio return type of the function.  In this conversion,
alloc_huge_page_vma() is also changed to alloc_hugetlb_folio_vma() and
hugepage_add_new_anon_rmap() is changed to take in a folio directly.  Many
additions of '&folio->page' are cleaned up in subsequent patches.

hugetlbfs_fallocate() is also refactored to use the RCU +
page_cache_next_miss() API.

Link: https://lkml.kernel.org/r/20230125170537.96973-5-sidhartha.kumar@oracle.com
Suggested-by: Mike Kravetz <mike.kravetz@oracle.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
fs/hugetlbfs/inode.c
include/linux/hugetlb.h
include/linux/rmap.h
mm/hugetlb.c
mm/mempolicy.c
mm/rmap.c